Gas-cock.



L. BB'DARD.

4 GAS 000K.

APPLIOATION FILED MAY 23, 1911.

WNW: new

Patented Feb. 20, 1912. 1

Le'wz [5 2/4/ 1 llti pnrrnn STATES PATENT carton.

LEoNrEDARn, or QUEBEC, QUEBEC, CANADA.

GAS-COCK.

To all whom it may concern:

Be it knownthat I, LiioN Biinann, a subject of the King of GreatBritain, residing at Quebec city, in the Province of Quebec, Canada,have invented new and useful Improvements in Gas-Cocks, of which thefollowing is a specification.

This invention relates to gas cocks, the object of the invention beingto provide a simple and effective device which will automatically lockthe cock when closed, and which will require a manual operation tounlock the same before the 'gas can pass through the cock.

With the above object in view, and others which will appear as thenature of the invention. progresses, the improvement resides in thenovel construction and arrangement of parts hereinafter fully describedand claimed.

In the drawings, accompanying this specification, there has beenillustrated a simple and preferred embodiment of the improvement, itbeing understood, however, that the showing therein is merelyillustrative and that changes in the minor details of construction, suchas size, shape, proportion, etc., which fall within the scope of theappended claim, may be made, if desired.

In the drawings,Figure 1 is an elevation of a cock constructed inaccordance Fig. 2 1s a verwith the present invention. tieal transversesectional view taken upon the line 22 of Fig. 1. Fig. 3 is a horizontalsectional view taken upon the line 33 of Fig. 1. p

The gas cock is primarily #adapted' for use in connection with gasstoves, but, of course, is susceptible for use in connection withilluminating gas burners; In the drawings, the numeral 1 designates thebody or casing of the cock. This body 1 has integrally connected theretoa threaded inlet port 2 and an outlet port 3. The port 3 may be providedwith a suitable burner if desired, and the said burner may have a flameadjusting cap. The casinglis formed with the usual threaded core whichis ar-' ranged transversely of the inlet and outlet I Specification ofLetters Patent.

- Application filed May 23, 1911.

faces of the body 10.

Patented Feb. 20, 1912.

{Berial No. 629,042.

sets or shoulders provided by thesaid recess are adapted to limit themovement of the valve so as to bring its port 7 into register with theports 2 and 3 when the gas 1s to be turned on and so as to limit themovement of the said plug in an opposite direction when the flow of gasis to be turned oli. The plug 6 is provided with the usual operatinghandle 8, and the said plug 1s further provided with a verticallyarranged. slot 9. This slot 9 has its inner wall preferably beveled orinclined from the top to the bottom of the said slot,'and the slot isarranged at an angle with relation to the pin 5.

The numeral 9 designates the automatic locking member for the cock. Thismember 9 comprises an elongated body portion 10 having a head 11 andhaving its inner face adjacent its upper portion provided with thespring 12, the latter adapted to be received within a suitable recessformed in the upper portion of the inner wall of the slot 9. The spring'12 is adapted to exert an outward pressure upon the body 10, and thelower portion of the said body is provided with a reduced extension 14.This portion 14 is adapted to receive a lock bar 15, the latterprojecting beyond each of the is provided with a depression 16 which isadapted to receive the inner portion of the lock bar 15, and theouterportion of the said lock bar is adapted to engage with the shoulderprovided by the recess formed upon thecasing opposite to that engaged bythe pin 5 when the plug is turned so as to prevent the passage of gastherethrough. When the cock is to be opened to allow the passage of gastherefrom, a pressure is can erted upon the head '11 of the lock, thusforcing the lock bar rearwardly within the slot 9 so that the projectingportion of the lock bar is free of the said shoulder and the handle 8may be rotated without further interference of the said lock bar untilthe same is stopped by the pin '5 contacting the shoulder of the recesspreviously contacted by the projecting portion of the lock bar.

The tapering plug- When the-gas is to be turned off noattention will bepaid to the lock 9, as the lock bar of the same will automaticallyspring into. position after the pin 5 contacts with the oppositeshoulder formed by the recess.

The advantages of the arrangement. as disclosed is"apparent from thefact that with my device it is impossible to accidenably arrangedadjacent the gas stoves, so

that the same will be arranged out of the sight of persons notacquainted with the operation of the cock, and this materially adds tothesaiety of suchdevices.

Having thus fully described the said invention, what I claim i.:-

A stop cock inclulling a casing hating the usual ports and a taperingbore communicating with the ports, a tapering plug having an openingcommunicating with the ports, a pin upon the plug, the casing ha *ingthe usual recess forming the oppositely arranged shoulders, an automaticlock, the plug being provided with a slot having its inner Wall inclinedthe receptimi of the lock, the

said plug being provide 1 with a depression, the extremity provided andupper o n gaging Within the recess, the lower extremity of the lockhaving a lock bar projecting be yond each of the thereof, one of saidprojecting portions engaging within the depression of the plug, theprojecting portion of the lock bar adapted to engage the shoulder of therecess of the (using opposite to that -'occupied by the pin of the plugwhen the cock is in the chard gw ilicnj'. l lock being provided a ingbeyond. the plug, to be contacted to .t'o the pl recess and the lock l1r out or with the shoulder when the said plu; be rotated to open thecock.

In testimony whereof l eilir. my signature in presence of two witm 1SLEON into MED.

lVitnesses J B. Demon, Ozvnsrnn nn nnniunnl.

